Headphone



FIG. 1 is a front perspective view of a headphone showing our new design, the opposite perspective view is a mirror image;

FIG. 2 is a front view thereof, the rear being a mirror image;

FIG. 3 is a right side view thereof, the left side being a mirror image;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom view thereof.

The broken line showing of the headphone is included for the purpose of illustrating portions of the headphone and forms no part of the claimed design. 

CLAIM The ornamental design for a headphone, as shown and described. 